Abstract

It is inferred from the results obtained that in the production of hybrid seeds of CSH 5. flowering synchronisation between the two parents is easier as difference in flowering is on an average 3 to 4 days which can be adjusted by staggered sowings of parents. The sowing of parents should be taken up between April to November. In the case of CSH 6, the best nicking period falls for the parents sown during the begin- ning of the year as well towards the middle of the year (February, March and June and July). Regarding CoH (Kovilpatti Tall) hybrid seed production is a problem due to the erratic flowering behaviour of IS 3541 the male parent. Natural synchronisation of both. the parents can be adjusted only if the sowings of the parents are taken up during September to December.

Keywords: